Android application developer with Java backend

Role - Developer (Specialty) II

Location - Richfield - Minnesota

Recent local project is must from MN.

We build deploy and support all infrastructure for retail supply chain and corporate employees at Best Buy. Our engineering team has engineers of all types (Windows Linux Mac Android iOS Hardware Software Security and Network) as well as a group of developers who help develop software to facilitate deployment and support of this infrastructure.

Project Description :

This developer would be focused on an Android application with a Java back end that we use on our mobile Android devices in the field. This application manages login (OIDC-based SSO) retail time notifications (FCM) and session management for internal as well as third party applications and provides security and usage tracking and reporting.

Position Summary / Job Description :

Were looking for an experienced Android developer to help modernize and add enhancements to this application. We have 2 existing developers working in this space already.

Skills Overview :

What are the top five skills and number of years of experience required to perform this job

1. Technical Requirements (Must-Haves)

Deep Java & Architecture Expertise :

Expert-level knowledge of Java 11 / 17 / 21 and traditional Android threading models.

Advanced knowledge of WorkManager Foreground Services and BroadcastReceivers.

Experience managing Always-On background services that must survive aggressive battery optimization and system reboots.

2. Identity & Security (OIDC) :

Proven experience implementing OIDC (OpenID Connect) and OAuth 2.0 flows using the AppAuth-Android library.

Experience managing secure token storage via EncryptedSharedPreferences and MasterKey management.

3. Enterprise Messaging & Handshakes :

Hands-on experience with Firebase Cloud Messaging (FCM) (Data Messages) and Microsoft Azure Notification Hub (ANH).

Experience implementing complex registration handshakes involving multi-tier authentication and device / session mapping.

4. Inter-Process Communication (IPC) :

Proven experience with AIDL (Android Interface Definition Language) and Binders.

Ability to manage secure communication and state synchronization between multiple separate apps on the same device.

5. Modernization & SDK Migration :

Experience migrating legacy projects (Support Library 28) to AndroidX and Android 14 (API 34).

Understanding of modern security requirements : PendingIntent mutability Foreground Service Types and granular Permission models.

What are some preferred / nice to have skills the manager is looking for

1. Enterprise Device Management :

o Experience with Zebra / Symbol devices EMDK DataWedge.

2. Data Integrity :

o Experience with oracle or SQL database for high-volume logging and local c onfiguration storage.

3. Tooling :

o Expert level with Gradle 8.5 ProGuard / R8 and Git.

Interview Process Overview :

1 interview with HM and the development lead

Key Skills

APIs,REST,Eclipse,Android,Application Development,SDKs,SQLITE,IOS,Java,JSON,Gradle,Mobile Applications

Employment Type : Full Time

Experience : years

Vacancy : 1